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My protron tv pltv-32c has sound but no picture when you change channels the picture flashes for a second then goes off

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Hi.

If there is sound but no picture, screen is completely dark and the picture is occasionally flashing, then the fault is likely a faulty inverter. In some case a faulty controller board or a defective PSU can cause the same problem.

I summarized the problem here:My LCD TV has sound but no picture.

I posted general procedure to test inverter, PSU and controller board on LCD here : How to test an LCD TV or monitor PSU and inverter.

If screen is not dark, but has blacklight or noise things are different. In that case check connection cables first. Parts that may be defective are main controller board, terminal circuit and tuner board.

Protron parts are available using the link below. Ensure that parts are compatible with your model before purchasing.

ShopJimmy - Protron Parts.

Regards.

Posted on May 15, 2010

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SOURCE: my protron tv pltv-32c has

Hi.

If there is sound but no picture, screen is completely dark and the picture is occasionally flashing, then the fault is likely a faulty inverter. In some case a faulty controller board or a defective PSU can cause the same problem.

I summarized the problem here:My LCD TV has sound but no picture.

I posted general procedure to test inverter, PSU and controller board on LCD here : How to test an LCD TV or monitor PSU and inverter.

If screen is not dark, but has blacklight or noise things are different. In that case check connection cables first. Parts that may be defective are main controller board, terminal circuit and tuner board.

Protron parts are available using the link below. Ensure that parts are compatible with your model before purchasing.

ShopJimmy - Protron Parts.

Regards.

Posted on May 15, 2010

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2 Answers

My protron tv pltv-32c has no picture but has sound, if you change channels the picture will flash on for about 1 second


Hi.

If there is sound but no picture, screen is completely dark and the picture is occasionally flashing, then the fault is likely a faulty inverter. In some case a faulty controller board or a defective PSU can cause the same problem.

I summarized the problem here:My LCD TV has sound but no picture.

I posted general procedure to test inverter, PSU and controller board on LCD here : How to test an LCD TV or monitor PSU and inverter.

If screen is not dark, but has blacklight or noise things are different. In that case check connection cables first. Parts that may be defective are main controller board, terminal circuit and tuner board.

Protron parts are available using the link below. Ensure that parts are compatible with your model before purchasing.

ShopJimmy - Protron Parts.

Regards.

May 15, 2010 | Televison & Video

1 Answer

My 26in Protron lcd has sound but no picture.


the symptom of the flash will be faulty invertors. start checking power supply output and resistance across invertors

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Sorry, I don't recall an email from you FM. I usually answer within a day. The power supply will need to be removed from the TV and shipped to me. dave@thola.com  714-809-3461

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DTV Converter Box


If there is no digital tuner built into the tv or unless you subscribe to Cable TV or Satellite service you will still need a converter to view tv with rabbit ears (air broadcast).

Good luck!

I Can Fix It

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